ABB ACS560 - Page 344

344 Parameters
71.39 Deadband range The control program compares the absolute value of
parameter 71.04 Deviation act value to the deadband range
defined by this parameter. If the absolute value is within the
deadband range for the time period defined by parameter
71.40 Deadband delay, PID's deadband mode is activated
and 71.06 PID status word bit 9 Deadband active is set. Then
PID's output is frozen and 71.06 PID status word bit 2 Output
frozen is set.
If the absolute value is equal or greater than the deadband
range, PID's deadband mode is deactivated.
0.0
0.0…200000.0 Range 1 = 1
71.40 Deadband delay Defines the deadband delay for the deadband function. See
parameter 71.39 Deadband range.
0.0 s
0.0…3600.0 s Delay 1 = 1 s
71.58 Increase prevention See parameter 40.58 Set 1 increase prevention. No
71.59 Decrease
prevention
See parameter 40.59 Set 1 decrease prevention. No
71.62 Internal setpoint
actual
See parameter 40.62 PID internal setpoint actual. -
71.79 External PID units Selects the unit for process PID setpoint, feedback and
deviation.
%
User text User text 0
%% 1
bar bar 2
kPa kPa 3
Pa Pa 4
psi psi 5
CFM CFM 6
inH
2
OinH
2
O7
°C °C 8
°F °F 9
mbar mbar 10
m
3
/h m
3
/h 11
dm
3
/h dm
3
/h 12
I/s I/s 13
I/min I/min 14
I/h I/h 15
m
3
/s m
3
/s 16
m
3
/m m
3
/m 17
km
3
/h km
3
/h 18
gal/s gal/s 19
ft
3
/s ft
3
/s 20
ft
3
/m ft
3
/m 21
ft
3
/h ft
3
/h 22
ppm ppm 23
No. Name/Value Description Def/FbEq16